19.2 The belts must be snug, but must not be so tight that they interfere with
breathing. You should be able to slide your open hand, flat, between the belt
and the user.
19.3 A pelvic wedge or a similar device can help keep the user from sliding down in
the seat. Consult with the user's doctor, nurse or therapist to find out if the
device is needed.
19.4 Use positioning belts only with a user who can cooperate. Make sure the user
can easily remove the belts in an emergency.
19.5 NEVER use positioning belts as a patient restraint.
20.0 ELECTROMAGNETIC INTERFERENCE
DANGER: ELECTROMAGNETIC INTERFERENCE (EMI) MAY CAUSE
ERRATIC, UNINTENTIONAL OR UNCONTROLLED MOVEMENT OF A
POWERED WHEELCHAIR! READ AND FOLLOW INFORMATION
CAREFULLY BEFORE OPERATING THE CHAIR.
20.1 What can I do to reduce the risk that my powered wheelchair could be
affected by EMI?
Here are some precautions you can take:
1) Do not turn ON or use hand-held personal communication
devices, such as citizens band (CB) radios or cellular phones,
while the powered wheelchair is ON.
2) Be aware of nearby transmitters, such as radio or TV stations and
hand-held or mobile two-way radios, and try to avoid coming
close to them.
3) Be aware that adding accessories or components, or modifying
the power wheelchair, may make it more susceptible to
interference from radio wave sources. (NOTE: There is no easy
way to evaluate their impact or effect on the overall immunity of
the power wheelchair).
What should I do if my power wheelchair moves unexpectedly?
If unintended motion or brake release occurs, turn the power wheelchair OFF
as soon as it is safe.
If my power wheelchair moves unexpectedly, where should I report